Drainage system with hydraulic rotary weir gate and drainage control method

Abstract

The present invention relates to the technical field of drainage systems, and specifically to a drainage system with a hydraulic rotary weir gate and a drainage control method, comprising a well body, a sewage interception pipe and a control unit, and also comprising: a sewage interception tank, wherein the sewage interception tank is arranged at the outer bottom of the well body; a sewage inlet, wherein the sewage inlet is opened at the bottom wall of the well body and communicates with the sewage interception tank; a conveying mesh belt, wherein the conveying mesh belt is arranged in the well body and is located between the water inlet pipe and the drainage pipe; and a plurality of filtering and collecting mechanisms, wherein each filtering and collecting mechanism is arranged at equal intervals on the conveying surface of the conveying mesh belt. The present invention provides a sewage interception tank, a sewage inlet, a conveying mesh belt and each filtering and collecting mechanism, and when the conveying mesh belt is running, the filtering and collecting mechanism can collect debris in different states such as floating state and suspended state in the water body between the conveying mesh belt and the water inlet pipe downward into the sewage interception tank, thereby preventing debris in different states in the water body from easily entering the water body between the conveying mesh belt and the drainage pipe along with the water flow, thereby effectively reducing the pollution to the natural water body.

Description

Technical Field

[0001] The invention relates to the technical field of drainage systems, and in particular to a drainage system with a hydraulic rotary weir gate and a drainage control method. Background Art

[0002] The drainage system refers to the collection, transportation, water quality treatment and discharge of drainage facilities, which are combined in a certain way. It is mainly used for waterlogging, waterlogging prevention, salt prevention and the discharge of various wastewater. Diversion wells are important engineering facilities in the drainage system. During the peak drainage period, the water flow may increase sharply, causing great pressure on the drainage system. At this time, the diversion well can use its regulating function to buffer and regulate the water flow entering the system to avoid floods or system paralysis caused by excessive water flow in local areas. At the same time, it can also guide excess water flow to other treatment systems or storage facilities according to actual needs to balance the flow of the entire drainage system.

[0003] The diversion well is a circular or square well structure, usually composed of an inlet pipe, a sewage interception pipe, a hydraulic flow limiting gate, an ultrasonic level meter, a floating baffle, a hydraulic down-opening weir gate, an outlet pipe and a control unit. The hydraulic flow limiting gate is used to control the amount of water flowing through the sewage interception pipe, and the hydraulic down-opening weir gate is used to control the amount of water flowing through the outlet pipe. It can regulate the water flow to ensure that the flow distribution is more reasonable when the water flows in different channels. The debris in the water body is generally intercepted by the floating baffle. Through its special design and buoyancy, it can effectively intercept floating objects in the upstream water, such as leaves, garbage, etc., to prevent these debris from flowing into the natural water body through the outlet pipe.

[0004] During use, it was found that the design of the floating baffle enables it to float up and down with the change of water level, always maintaining effective interception of floating objects; however, under the action of water flow, some debris in the diversion well will be in a suspended state and cannot be effectively intercepted by the floating baffle. The suspended debris will enter the natural water body with the water flow and cause pollution. For this reason, we proposed a drainage system with a hydraulic rotating weir gate and a drainage control method to effectively solve the above-mentioned drawbacks. Summary of the invention

[0005] The object of the present invention is to provide a drainage system with a hydraulic rotary weir gate and a drainage control method, so as to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is realized by the following technical scheme: a drainage system with a hydraulic rotary weir gate, comprising a well body, a sewage interception pipe and a control unit, wherein a plurality of ultrasonic level gauges are arranged on the inner top of the well body, and a water inlet pipe and a drainage pipe are respectively connected to the opposite sides of the well body, and further comprising:

[0007] A hydraulic rotary weir gate, wherein the hydraulic rotary weir gate is arranged in the drainage pipe;

[0008] A sewage interception tank, the sewage interception tank is arranged at the outer bottom of the well body, the sewage interception pipe is connected to the sewage interception tank, and a hydraulically operated upward opening gate is arranged in the sewage interception tank, and the hydraulically operated upward opening gate is used to control the opening and closing of the sewage interception pipe;

[0009] A sewage inlet, which is opened on the bottom wall of the well body and communicates with the sewage interception tank;

[0010] A conveyor belt, which is arranged in the well body and between the water inlet pipe and the drain pipe, and moves vertically through the sewage inlet and extends into the sewage interception tank;

[0011] A plurality of filtering and collecting mechanisms are arranged at equal intervals on the conveying surface of the conveying mesh belt and are used to collect debris in the water body between the conveying mesh belt and the water inlet pipe into the sewage interception tank.

[0012] Preferably, a plurality of mesh holes are evenly distributed on the conveyor mesh belt, and the side of the conveyor mesh belt close to the water inlet pipe is the conveying section, and the side of the conveyor mesh belt close to the drain pipe is the return section.

[0013] Preferably, the filtering and collecting mechanism comprises a fixed mesh plate arranged on the conveyor mesh belt, and side plates are fixedly connected to the front and rear sides of the fixed mesh plate, and strip holes are penetrated through each side plate along the length direction;

[0014] An extended mesh plate is slidably connected between the two side plates, a sliding rod that movably passes through the strip holes is fixedly connected to the extended mesh plate, an elastic telescopic sliding assembly is connected to the front and rear ends of the sliding rod, and sliding grooves that cooperate with the elastic telescopic sliding assembly are arranged on the front and rear inner walls of the well body, and each sliding groove extends downward into the sewage interception tank.

[0015] Preferably, the elastic telescopic sliding assembly includes a sliding sleeve movably mounted on the end of the sliding rod and matched with the sliding groove, and an elastic member located in the sliding sleeve and always applying an outward elastic force to the sliding sleeve is connected between the sliding sleeve and the sliding rod; two limit columns are distributed above and below at one end of the sliding sleeve close to the side plate, and limit holes corresponding to each limit column are opened at the proximal end of one end of the side plate close to the conveyor belt.

[0016] Preferably, the slide groove consists of a first straight groove, a first oblique groove, a second straight groove, a first arc-shaped groove, a second oblique groove and a third straight groove which are distributed in sequence from top to bottom; the first straight groove and the first oblique groove are located in the well body, and the first arc-shaped groove, the second oblique groove and the third straight groove are located in the sewage interception tank.

[0017] Preferably, the slide bar is cylindrical, and the side of the extended mesh plate away from the slide bar is hinged to a limiting component;

[0018] The limit assembly includes connecting blocks hinged on the front and rear sides of the extended mesh plate, two connecting rods are distributed up and down on the side of each connecting block close to the side plate, and a limit slider is fixedly connected to the end of each connecting rod away from the connecting block; two limit grooves are distributed up and down in each side plate, and each limit slider slides one by one in the corresponding limit groove, and a compression spring is arranged in each limit groove to always apply outward elastic force to the limit slider.

[0019] Preferably, the extended mesh plate comprises a first mesh plate and a second mesh plate hinged to each other, the first mesh plate is fixedly connected to the slide bar, and the second mesh plate is hinged to each connecting block;

[0020] When the elastic telescopic sliding assembly slides in the second linear groove and the first arc groove, the first mesh plate and the second mesh plate cooperate with each other to form an inverted V-shaped structure.

[0021] Preferably, one end of the fixed mesh plate close to the conveyor mesh belt is fixedly connected to a rotating shaft, a sleeve movably sleeved on the rotating shaft is fixedly connected to the conveyor mesh belt, a torsion spring located in the sleeve is sleeved on the rotating shaft, one torsion arm of the torsion spring is connected to the rotating shaft, and the other torsion arm of the torsion spring is connected to the sleeve, so as to make the fixed mesh plate perpendicular to the conveying surface of the conveyor mesh belt;

[0022] A positioning column is fixedly connected to the rotating shaft, and an arc-shaped positioning groove adapted to the positioning column is opened on the inner wall of the sleeve, wherein the arc-shaped positioning groove is in an arc shape of a quarter of a circle.

[0023] Preferably, both ends of the rotating shaft are detachably connected with shifting blocks located outside the casing, and both front and rear sides of the inner wall of the sewage interception tank are detachably connected with blocks corresponding to each shifting block and located on one side of the return section of the conveying mesh belt, and the top of the block passes through the sewage inlet and extends into the well body;

[0024] When the stopper and the shifting block come into contact, the rotating shaft is driven to rotate 90° clockwise so that the fixed mesh plate is parallel to the conveying surface of the conveyor mesh belt.

[0025] The present invention also provides a drainage control method for a drainage system with a hydraulic rotary weir gate, comprising the following steps:

[0026] Step 1: The upstream water enters the well body from the water inlet pipe, and the water level in the well body is monitored in real time by an ultrasonic level meter, and the water level information is transmitted to the control unit;

[0027] Step 2: When the water level is lower than the warning value, the hydraulic upward-opening gate is in the open state, the hydraulic rotary weir gate is in the closed state, and the water flows to the sewage treatment plant through the sewage interception pipe;

[0028] Step 3: When the water level is higher than the warning value, the hydraulic upward-opening gate and the hydraulic rotary weir gate are both in the open state, and part of the water flows to the sewage treatment plant through the sewage interception pipe, and the other part flows to the natural water body through the drainage pipe;

[0029] Step 4: In step 2 and step 3, the conveyor belt is always in operation;

[0030] The filtering and collecting mechanisms on the conveying section of the conveyor mesh belt cooperate with each other to form a horizontal mountain-shaped structure, which is used to collect the debris in the water body between the conveyor mesh belt and the water inlet pipe into the sewage interception tank;

[0031] Each filter collecting mechanism on the return section of the conveyor mesh belt first turns clockwise to be parallel to the conveying surface of the conveyor mesh belt, and then turns back to be perpendicular to the conveying surface of the conveyor mesh belt after passing through the sewage inlet, so as to reduce the gap between the return section of the conveyor mesh belt and the sewage inlet, so that the debris in the sewage interception tank is not easy to enter the water body between the conveyor mesh belt and the drainage pipe through the gap between the return section of the conveyor mesh belt and the sewage inlet;

[0032] Step 5: The debris entering the sewage interception tank will flow to the sewage treatment plant through the sewage interception pipe for centralized treatment to prevent the debris from flowing into natural water bodies.

[0033] Compared with the prior art, the present invention provides a drainage system with a hydraulic rotary weir gate and a drainage control method, which has the following beneficial effects:

[0034] 1. The present invention is provided with a sewage interception tank, a sewage inlet, a conveying mesh belt and various filtering mechanisms. When the conveying mesh belt is running, the debris in different states such as floating state and suspended state in the water body between the conveying mesh belt and the water inlet pipe can be collected downward into the sewage interception tank through the filtering mechanism, so that the debris in different states in the water body is not easy to enter the water body between the conveying mesh belt and the drainage pipe with the water flow, which effectively reduces the pollution to the natural water body.

[0035] 2. The filtering mechanisms on the conveying section of the conveyor mesh belt of the present invention cooperate with each other to form a horizontal mountain-shaped structure, which has a large filtering area and a good filtering effect, and can effectively collect debris in different states in the water between the conveyor mesh belt and the water inlet pipe downward into the sewage interception tank.

[0036] 3. The filtering mechanisms on the return section of the conveyor mesh belt of the present invention are first turned clockwise to be parallel to the conveying surface of the conveyor mesh belt, and then rotated to be perpendicular to the conveying surface of the conveyor mesh belt after passing through the sewage inlet. This can minimize the gap between the return section of the conveyor mesh belt and the sewage inlet, so that the debris in the sewage interception tank is not easy to enter the water body between the conveyor mesh belt and the drain pipe through the gap between the return section of the conveyor mesh belt and the sewage inlet, thereby making it difficult for the debris to flow into the natural water body through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a front view of the filtering and collecting mechanism of the present invention;

[0039] Figure 3 It is a schematic diagram of the filtering mechanism of the present invention from another angle;

[0040] Figure 4 It is a structural cross-sectional view of the elastic telescopic sliding assembly of the present invention;

[0041] Figure 5 It is a structural schematic diagram of the limiting groove of the present invention;

[0042] Figure 6 It is a structural schematic diagram of the chute of the present invention;

[0043] Figure 7 This is a schematic diagram of a fully extended screen plate of the present invention;

[0044] Figure 8 This is a schematic diagram of the state in which the extended screen of the present invention is fully retracted;

[0045] Fig. 9 for Figure 1 The corresponding figure at A is enlarged;

[0046] Fig.10 It is a schematic diagram of the state in which the shift block and the stop block of the present invention are in sliding contact;

[0047] Fig.11 It is a cross-sectional view of the casing structure of the present invention;

[0048] Fig.12 for Fig.11 Middle AA section view;

[0049] Fig.13 This is a schematic diagram of the filtering mechanism of the second embodiment of the present invention.

[0050] In the figure: 1, well body; 2, sewage interception pipe; 3, hydraulic upper opening gate; 4, control unit; 5, ultrasonic level meter; 6, water inlet pipe; 7, drainage pipe; 8, hydraulic rotary weir gate; 9, sewage interception tank; 10, sewage inlet; 11, conveying mesh belt; 12, elastic telescopic sliding assembly; 1201, sliding sleeve; 1202, elastic member; 1203, limiting column; 1204, limiting hole; 13, filter collection mechanism; 1301, fixed mesh plate; 13011, fixed rod; 13012, filter screen; 13013, counterweight bar; 1302, side plate; 1303, strip hole; 1304, extended mesh plate; 1304 1. First mesh plate; 13042. Second mesh plate; 1305. Slide bar; 1306. Limiting assembly; 13061. Connecting block; 13062. Connecting rod; 13063. Limiting slider; 13064. Limiting slot; 13065. Compression spring; 14. Slide slot; 1401. First straight slot; 1402. First oblique slot; 1403. Second straight slot; 1404. First arcuate slot; 1405. Second oblique slot; 1406. Third straight slot; 15. Sleeve; 16. Rotating shaft; 17. Torsion spring; 18. Push block; 19. Stop block; 20. Positioning column; 21. Arc-shaped positioning slot. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example 1: Please refer to Figures 1 to 12 A drainage system with a hydraulic rotary weir gate includes a well body 1, a sewage interception pipe 2 and a control unit 4. The sewage interception pipe 2 is connected to a sewage treatment plant through a pipeline, and can discharge upstream water into the sewage treatment plant. A plurality of ultrasonic level gauges 5 are arranged on the inner top of the well body 1 to monitor the water level in the well body 1 in real time. The signal output end of the ultrasonic level gauge 5 is connected to the control unit 4. An inlet pipe 6 and a drain pipe 7 are connected to the opposite sides of the well body 1 respectively. The upstream water enters the well body 1 through the inlet pipe 6. The drain pipe 7 is connected to a natural water body through a pipeline, and can discharge the upstream water into the natural water body.

[0053] This embodiment also includes a hydraulic rotary weir gate 8, a sewage interception tank 9, a sewage inlet 10, a conveying mesh belt 11 and a plurality of filtering and collecting mechanisms 13; wherein the hydraulic rotary weir gate 8 is arranged in the drain pipe 7 to control the amount of water flowing through the drain pipe 7. The sewage interception tank 9 is arranged at the outer bottom of the well body 1 to facilitate the collection of debris in the water body. The sewage interception pipe 2 is connected to the sewage interception tank 9, and a hydraulic upper opening gate 3 is arranged in the sewage interception tank 9. The hydraulic upper opening gate 3 is used to control the opening and closing of the sewage interception pipe 2, thereby controlling the amount of water flowing through the sewage interception pipe 2. The sewage inlet 10 is opened on the bottom wall of the well body 1 and communicates with the sewage interception tank 9. The water and debris in the well body 1 can enter the sewage interception tank 9 through the sewage inlet 10.

[0054] In this embodiment, the hydraulic upper opening gate 3, the hydraulic rotary weir gate 8 and the conveyor mesh belt 11 are electrically connected to the control unit 4 respectively, and the water level in the well body 1 is monitored in real time by the ultrasonic level meter 5, and the signal is transmitted to the control unit 4, and the hydraulic upper opening gate 3 and the hydraulic rotary weir gate 8 are controlled by the control unit 4 to control the amount of water flowing through the sewage interception pipe 2 and the drainage pipe 7, thereby regulating the water flow. It should be noted that the control unit 4 used in this application, and the hydraulic upper opening gate 3, the ultrasonic level meter 5, the hydraulic rotary weir gate 8 and the conveyor mesh belt 11 electrically connected to the control unit 4 are all prior art, and the connection between the various components is also prior art, so the connection relationship and principle thereof will not be repeated here.

[0055] It should be added that the conveyor mesh belt 11 adopts a belt conveyor, the control unit 4 is connected to the motor of the belt conveyor, and the belt of the belt conveyor is covered with mesh holes for the normal flow of water. The conveyor mesh belt 11 is arranged in the well body 1 and is located between the water inlet pipe 6 and the drain pipe 7. The conveyor mesh belt 11 moves in the vertical direction through the sewage inlet 10 and extends into the sewage interception tank 9. The water flow can pass through the mesh of the conveyor mesh belt 11 normally, so that it can be discharged through the drain pipe 7 and flow into the natural water body. In use, the conveyor mesh belt 11 rotates counterclockwise.

[0056] The filtering mechanism 13 is introduced as follows:

[0057] A plurality of filtering mechanisms 13 are arranged at equal intervals on the conveying surface of the conveying mesh belt 11, and are used to collect the debris in the water between the conveying mesh belt 11 and the water inlet pipe 6 into the sewage interception tank 9. When the conveying mesh belt 11 is running, the debris in different states such as floating state and suspended state in the water between the conveying mesh belt 11 and the water inlet pipe 6 can be collected downward into the sewage interception tank 9 through the filtering mechanism 13, so that the debris in different states in the water is not easy to enter the water between the conveying mesh belt 11 and the drainage pipe 7 with the water flow, which effectively reduces the pollution to the natural water body.

[0058] Preferably, the side of the conveyor mesh belt 11 close to the water inlet pipe 6 is the conveying section, and the side of the conveyor mesh belt 11 close to the drain pipe 7 is the return section, wherein the filtering mechanisms 13 on the conveying section cooperate with each other to form a lying mountain-shaped structure, which has a large filtering area and a good filtering effect, and can effectively collect various states of debris in the water body between the conveyor mesh belt 11 and the water inlet pipe 6 downward into the sewage interception tank 9.

[0059] Specifically, if Figure 2 and Figure 3 As shown, the filtering mechanism 13 includes a fixed mesh plate 1301 disposed on the conveyor mesh belt 11, and side plates 1302 are fixedly connected to the front and rear sides of the fixed mesh plate 1301, and strip holes 1303 are penetrated along the length direction of each side plate 1302. An extended mesh plate 1304 is slidably connected between the two side plates 1302, and a slide bar 1305 that movably passes through each strip hole 1303 is fixedly connected to the extended mesh plate 1304. The slide bar 1305 can slide along the length direction of the strip hole 1303, thereby extending or retracting the extended mesh plate 1304 to change the filtering area. An elastic telescopic sliding assembly 12 is connected to the front and rear ends of the sliding rod 1305, and a slide groove 14 matching the elastic telescopic sliding assembly 12 is arranged on the front and rear inner walls of the well body 1. Each slide groove 14 extends downward into the sewage interception tank 9. The elastic telescopic sliding assembly 12 slides in the slide groove 14, thereby being able to adjust the extended mesh plate 1304 so that the extended mesh plate 1304 can be extended or retracted.

[0060] Further, such as Figure 4As shown, the elastic telescopic sliding assembly 12 includes a sliding sleeve 1201 movably mounted on the end of the sliding rod 1305 and matched with the sliding groove 14, and an elastic member 1202 located in the sliding sleeve 1201 and always applying an outward elastic force to the sliding sleeve 1201 is connected between the sliding sleeve 1201 and the sliding rod 1305; in this embodiment, the elastic member 1202 adopts a damping spring, which can apply an outward elastic force to the sliding sleeve 1201 and prevent the sliding sleeve 1201 from separating from the sliding rod 1305. Two limiting columns 1203 are distributed above and below at one end of the sliding sleeve 1201 close to the side plate 1302, and limiting holes 1204 corresponding to each limiting column 1203 are opened at the proximal end of one end of the side plate 1302 close to the conveyor mesh belt 11. When the sliding sleeve 1201 slides in the sliding groove 14, the sliding sleeve 1201 is not squeezed. At this time, under the action of the elastic member 1202, the sliding sleeve 1201 moves outward, so that the limiting column 1203 is separated from the limiting hole 1204. At this time, the sliding rod 1305 can move along the length direction of the strip hole 1303, so that the extended mesh plate 1304 can be adjusted. When the sliding sleeve 1201 moves outside the sliding groove 14, the sliding sleeve 1201 contacts the inner wall of the well body 1 or the sewage interception tank 9, so that the limiting column 1203 is inserted into the limiting hole 1204, so that the sliding rod 1305 cannot move along the strip hole 1303, and the extended mesh plate 1304 is in a fully retracted state.

[0061] Furthermore, the slide groove 14 is composed of a first straight groove 1401, a first oblique groove 1402, a second straight groove 1403, a first arc groove 1404, a second oblique groove 1405 and a third straight groove 1406 which are sequentially distributed in the upper and lower parts. Figure 6 As shown, the first straight groove 1401 and the first oblique groove 1402 are located in the well body 1 and between the water inlet pipe 6 and the conveying mesh belt 11, the second oblique groove 1405 and the third straight groove 1406 are located in the sewage interception tank 9 and between the drainage pipe 7 and the conveying mesh belt 11, the second straight groove 1403 is distributed in the vertical direction and passes through the sewage inlet 10, and the center of the circle corresponding to the first arc groove 1404 coincides with the rotation axis of the bottom end of the conveying mesh belt 11. Through the mutual cooperation between the first straight groove 1401, the first oblique groove 1402, the second straight groove 1403, the first arc groove 1404, the second oblique groove 1405, the third straight groove 1406 and the elastic telescopic sliding member 12, the filtering and collecting mechanisms 13 on the conveying section cooperate with each other to form a lying mountain-shaped structure. Specifically, when the sleeve 1201 moves in the first straight groove 1401, since the sleeve 1201 is not squeezed, the limit column 1203 is separated from the limit hole 1204 under the action of the elastic member 1202. At this time, the slide rod 1305 is located at the limit position on the far right of the strip hole 1303, so that the extended mesh plate 1304 is completely retracted between the two side plates 1302, and the overall length of the filtering mechanism 13 is minimized.

[0062] In addition, when the sliding sleeve 1201 moves in the first oblique groove 1402, it can drive the sliding rod 1305 to move leftward along the strip hole 1303, so that the extended mesh plate 1304 gradually stretches out. When the sliding sleeve 1201 moves in the second straight groove 1403, the sliding rod 1305 is located at the limit position on the leftmost side of the strip hole 1303. At this time, the extended mesh plate 1304 is in a fully expanded state, and the overall length of the filter collection mechanism 13 is the largest. When the sliding sleeve 1201 moves in the first arc groove 1404, the position of the sliding rod 1305 remains unchanged, and the extended mesh plate 1304 still maintains an inverted V-shaped structure, and is used to send dirt to the right side space of the conveyor mesh belt 11.

[0063] When the sliding sleeve 1201 moves in the second oblique groove 1405, the sliding rod 1305 will move along the strip hole 1303 to the side close to the conveyor mesh belt 11, so that the extended mesh plate 1304 will retract. When the sliding sleeve 1201 moves in the third straight groove 1406, the sliding rod 1305 is located in the strip hole 1303 and close to the limit position of one end of the conveyor mesh belt 11, and the limit column 1203 is aligned with the limit hole 1204, and the extended mesh plate 1304 is in a fully retracted state.

[0064] It is worth mentioning that due to the impact of water flow, the sleeve 1201 may not be able to enter the first straight groove 1401. Therefore, in the present embodiment, the top of the first straight groove 1401 is trumpet-shaped, so that the sleeve 1201 can enter the slide groove 14 more easily; in addition, an inclined block is provided at the end of the third straight groove 1406. The setting of the inclined block makes the depth of the third straight groove 1406 gradually decrease from bottom to top, and the bottom end of the third straight groove 1406 is flush with the inner wall of the sewage interception tank 9. The function is that when the sleeve 1201 slides upward along the third straight groove 1406, the sleeve 1201 can gradually move inward along the axial direction, and finally the limiting column 1203 is inserted into the limiting hole 1204.

[0065] In addition, it should be supplemented that when the sliding sleeve 1201 is in the second straight groove 1403 and the first arc groove 1404, the extended mesh plate 1304 is in a fully expanded state, and the extended mesh plate 1304 is in an inverted V-shaped structure, such as Figure 2 As shown, at this time, there is a certain gap between the extended mesh plate 1304 and the fixed mesh plate 1301; when the extended mesh plate 1304 retracts until the outer ends of the slide rod 1305 and the fixed mesh plate 1301 are aligned, the extended mesh plate 1304 is just in a horizontal state; the purpose is to prevent pollutants from gathering between the extended mesh plate 1304 and the fixed mesh plate 1301.

[0066] On the other hand, a limiting assembly 1306 is hingedly connected to one side of the extended mesh plate 1304 away from the sliding rod 1305; the limiting assembly 1306 includes a connecting block 13061 hinged on the front and rear sides of the extended mesh plate 1304, two connecting rods 13062 are distributed up and down on one side of each connecting block 13061 close to the side plate 1302, and a limiting slider 13063 is fixedly connected to one end of each connecting rod 13062 away from the connecting block 13061; two limiting grooves 13064 are distributed up and down in each side plate 1302, and each limiting slider 13063 slides one by one in the corresponding limiting groove 13064, and a compression spring 13065 is arranged in each limiting groove 13064 for always applying an outward elastic force to the limiting slider 13063.

[0067] The extended mesh plate 1304 includes a first mesh plate 13041 and a second mesh plate 13042 which are hinged to each other, wherein the first mesh plate 13041 is fixedly connected to the sliding rod 1305, and the second mesh plate 13042 is hinged to each connecting block 13061; when the elastic telescopic sliding assembly 12 slides in the second straight groove 1403, the first mesh plate 13041 and the second mesh plate 13042 cooperate with each other to form an inverted V-shaped structure. Specifically, the length of the limit groove 13064 is smaller than the length of the bar hole 1303, so that the moving distance of the connecting block 13061 is limited; when the sliding sleeve 1201 moves in the first oblique groove 1402, the sliding rod 1305 just moves to the left along the bar hole 1303, and under the action of the compression spring 13065, an outward thrust is provided to the limit slider 13063, so that the limit slider 13063 can slide to the left along the limit groove 13064, thereby making the first mesh plate 13041 and the second mesh plate 13042 in a horizontal state. When the sleeve 1201 moves to a certain distance in the first oblique groove 1402, the limit slider 13063 moves to the left to the limit position of the limit groove 13064, so that the limit slider 13063 no longer moves; at this time, the slide bar 1305 continues to move in the first oblique groove 1402, thereby driving the slide bar 1305 to continue to move to the left in the bar hole 1303, and then can drive the second mesh plate 13042 to flip along the connecting block 13061, so that the first mesh plate 13041 and the second mesh plate 13042 flip each other to form an inverted V-shaped structure, during which the angle of the inverted V-shaped structure gradually decreases. When the sleeve 1201 moves in the second straight groove 1403, the angle of the inverted V-shaped structure is the smallest.

[0068] In another embodiment of the present application, the fixed mesh plate 1301 is fixedly connected to a rotating shaft 16 at one end close to the conveyor mesh belt 11, and a sleeve 15 movably sleeved on the rotating shaft 16 is fixedly connected to the conveyor mesh belt 11, and a torsion spring 17 located in the sleeve 15 is sleeved on the rotating shaft 16, one of the torsion arms of the torsion spring 17 is connected to the rotating shaft 16, and the other torsion arm of the torsion spring 17 is connected to the sleeve 15, which is used to make the fixed mesh plate 1301 perpendicular to the conveying surface of the conveyor mesh belt 11. A positioning column 20 is fixedly connected to the rotating shaft 16, and an arc-shaped positioning groove 21 adapted to the positioning column 20 is provided on the inner wall of the sleeve 15, and the arc-shaped positioning groove 21 is in the shape of an arc of a quarter of a circle. Through the cooperation of the positioning column 20 and the arc-shaped positioning groove 21, the fixed mesh plate 1301 can only rotate 90° along the rotating shaft 16. Under normal conditions, the torsion spring 17 is in a tightened state. Under the action of the torsion spring 17, the positioning column 20 always abuts against one end of the inner side of the arc-shaped positioning groove 21, so that the filtering mechanism 13 is perpendicular to the conveying surface of the conveyor mesh belt 11, which does not affect the passage of water flow and can filter out debris at the same time.

[0069] Furthermore, the two ends of the rotating shaft 16 are detachably connected with shift blocks 18 located outside the casing 15, and the inner wall of the sewage interception tank 9 is detachably connected with blocks 19 corresponding to each shift block 18 and located on the return section of the conveyor mesh belt 11 on both sides. The top of the block 19 passes through the sewage inlet 10 and extends into the well body 1; through the cooperation of the shift block 18 and the block 19, the filtering mechanism 13 is turned over. Since the block 19 and the shift block 18 collide and rub against each other frequently and are easy to wear, a detachable manner is adopted to facilitate the replacement of wearing parts.

[0070] Specifically, when the stopper 19 contacts the shifting block 18, the rotating shaft 16 can be driven to rotate 90° clockwise, so that the fixed mesh plate 1301 is parallel to the conveying surface of the conveying mesh belt 11. Fig.10 As shown, when the fixed mesh plate 1301 is parallel to the conveying surface of the conveyor mesh belt 11, the block 19 and the shift block 18 are in sliding contact, so that the filter collecting mechanism 13 remains in a vertical state and passes through the sewage inlet 10. When the filter collecting mechanism 13 is completely separated from the sewage inlet 10, under the action of the torsion spring 17, the filter collecting mechanism 13 gradually rotates to a horizontal state, so that it is not easy to affect the water flow. With this design, the gap between the return section of the conveyor mesh belt 11 and the sewage inlet 10 can be minimized, so that the debris in the sewage interception tank 9 is not easy to enter the water body between the conveyor mesh belt 11 and the drain pipe 7 through the gap between the return section of the conveyor mesh belt 11 and the sewage inlet 10, so that the debris is not easy to flow into the natural water body through the drain pipe 7.

[0071] Embodiment 2: Fig.13As shown, the difference between this embodiment and embodiment one is that: the fixed mesh plate 1301 includes a fixed rod 13011 and a filter 13012, wherein the two side panels 1302 are fixedly connected to the fixed rod 13011, the two ends of the filter 13012 are respectively connected to the sliding rod 1305 and the fixed rod 13011, and the middle position of the filter 13012 has a counterweight bar 13013; the effect of this embodiment is different from that of embodiment one in that when the extended mesh plate 1304 is fully unfolded, there is no gap between the extended mesh plate 1304 and the fixed mesh plate 1301, so the pollution gathering ability is better, and when the extended mesh plate 1304 is retracted, the pollutants will not gather between the extended mesh plate 1304 and the fixed mesh plate 1301.

[0072] Embodiment 3: The embodiment of the present application provides a drainage control method for a drainage system with a hydraulic rotary weir gate, which is applicable to the drainage system with a hydraulic rotary weir gate in Embodiment 1 or Embodiment 2, and includes the following steps:

[0073] Step 1: The upstream water enters the well body 1 from the water inlet pipe 6, and the water level in the well body 1 is monitored in real time by the ultrasonic level meter 5, and the water level information is transmitted to the control unit 4;

[0074] Step 2: When the water level is lower than the warning value, the hydraulic upward-opening gate 3 is in the open state, the hydraulic rotary weir gate 8 is in the closed state, and the water flows to the sewage treatment plant through the sewage interception pipe 2;

[0075] Step 3: When the water level is higher than the warning value, the hydraulic upward-opening gate 3 and the hydraulic rotary weir gate 8 are both in the open state, and part of the water flows to the sewage treatment plant through the sewage interception pipe 2, and the other part flows to the natural water body through the drainage pipe 7;

[0076] Step 4: In step 2 and step 3, the conveyor belt 11 is always in operation;

[0077] The filtering and collecting mechanisms 13 on the conveying section of the conveying mesh belt 11 cooperate with each other to form a horizontal mountain-shaped structure, which is used to collect the debris in the water between the conveying mesh belt 11 and the water inlet pipe 6 into the sewage interception tank 9;

[0078] Each filter collecting mechanism 13 on the return section of the conveyor mesh belt 11 first turns clockwise to be parallel to the conveying surface of the conveyor mesh belt 11, and then turns back to be perpendicular to the conveying surface of the conveyor mesh belt 11 after passing through the sewage inlet 10, so as to reduce the gap between the return section of the conveyor mesh belt 11 and the sewage inlet 10, so that the debris in the sewage interception tank 9 is not easy to enter the water body between the conveyor mesh belt 11 and the drainage pipe 7 through the gap between the return section of the conveyor mesh belt 11 and the sewage inlet 10;

[0079] It should be added that when the sleeve 1201 moves to the inside of the second straight groove 1403, the extended mesh plate 1304 is in an expanded state, which serves to increase the filtering area. At the same time, the extended mesh plate 1304 is also in an inverted V shape, which serves to gather dirt in the water body under the extended mesh plate 1304, thereby improving the dirt gathering capacity of the extended mesh plate 1304.

[0080] Step 5: The debris entering the sewage interception tank 9 flows to the sewage treatment plant through the sewage interception pipe 2 for centralized treatment to prevent the debris from flowing into natural water bodies.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage system with a hydraulic rotary weir gate, comprising a well body (1), a sewage interception pipe (2) and a control unit (4), wherein a plurality of ultrasonic level gauges (5) are arranged at the inner top of the well body (1), and a water inlet pipe (6) and a drainage pipe (7) are respectively connected to opposite sides of the well body (1), characterized in that: Also includes: A hydraulically operated rotary weir gate (8), wherein the hydraulically operated rotary weir gate (8) is arranged in the drainage pipe (7); A sewage interception tank (9), the sewage interception tank (9) is arranged at the outer bottom of the well body (1), the sewage interception pipe (2) is connected to the sewage interception tank (9), and a hydraulically operated upwardly opening gate (3) is arranged in the sewage interception tank (9), and the hydraulically operated upwardly opening gate (3) is used to control the opening and closing of the sewage interception pipe (2); A sewage inlet (10), the sewage inlet (10) being opened on the bottom wall of the well body (1) and communicating with the sewage interception tank (9); A conveyor mesh belt (11), wherein the conveyor mesh belt (11) is arranged in the well body (1) and is located between the water inlet pipe (6) and the drainage pipe (7), and the conveyor mesh belt (11) moves in a vertical direction through the sewage inlet (10) and extends into the sewage interception tank (9); A plurality of filtering and collecting mechanisms (13), each of which is arranged at equal intervals on the conveying surface of the conveying mesh belt (11) and is used to collect debris in the water body between the conveying mesh belt (11) and the water inlet pipe (6) into the sewage interception tank (9); The conveyor mesh belt (11) is evenly distributed with a plurality of mesh holes, the side of the conveyor mesh belt (11) close to the water inlet pipe (6) is a conveying section, and the side of the conveyor mesh belt (11) close to the drainage pipe (7) is a return section; The filtering and collecting mechanism (13) comprises a fixed mesh plate (1301) arranged on the conveyor mesh belt (11), side plates (1302) are fixedly connected to the front and rear sides of the fixed mesh plate (1301), and strip holes (1303) are penetrated through each side plate (1302) along the length direction; An extended mesh plate (1304) is slidably connected between the two side plates (1302), a slide bar (1305) that movably passes through each strip hole (1303) is fixedly connected to the extended mesh plate (1304), an elastic telescopic sliding assembly (12) is connected to the front and rear ends of the slide bar (1305), and a slide groove (14) that matches the elastic telescopic sliding assembly (12) is arranged on the front and rear inner walls of the well body (1), and each slide groove (14) extends downward into the sewage interception tank (9); The elastic telescopic sliding assembly (12) comprises a sliding sleeve (1201) movably mounted on the end of the sliding rod (1305) and matched with the sliding groove (14); an elastic member (1202) located in the sliding sleeve (1201) and always exerting an outward elastic force on the sliding sleeve (1201) is connected between the sliding sleeve (1201) and the sliding rod (1305); two limiting columns (1203) are distributed above and below at one end of the sliding sleeve (1201) close to the side plate (1302); and limiting holes (1204) corresponding to the limiting columns (1203) are opened at the proximal end of one end of the side plate (1302) close to the conveyor mesh belt (11); The chute (14) is composed of a first straight groove (1401), a first oblique groove (1402), a second straight groove (1403), a first arc-shaped groove (1404), a second oblique groove (1405) and a third straight groove (1406) which are sequentially distributed in the upper and lower parts; the first straight groove (1401) and the first oblique groove (1402) are located in the well body (1), and the first arc-shaped groove (1404), the second oblique groove (1405) and the third straight groove (1406) are located in the sewage interception tank (9); The sliding rod (1305) is cylindrical, and a side of the extended mesh plate (1304) away from the sliding rod (1305) is hingedly connected to a limiting component (1306); The limiting assembly (1306) comprises a connecting block (13061) hinged on the front and rear sides of the extended mesh plate (1304); two connecting rods (13062) are distributed up and down on a side of each connecting block (13061) close to the side plate (1302); a limiting slider (13063) is fixedly connected to one end of each connecting rod (13062) away from the connecting block (13061); two limiting grooves (13064) are distributed up and down in each side plate (1302); each limiting slider (13063) slides one by one in the corresponding limiting groove (13064); and a compression spring (13065) is arranged in each limiting groove (13064) for always applying an outward elastic force to the limiting slider (13063); The extended mesh plate (1304) comprises a first mesh plate (13041) and a second mesh plate (13042) which are hinged to each other, the first mesh plate (13041) is fixedly connected to the sliding rod (1305), and the second mesh plate (13042) is hinged to each connecting block (13061); When the elastic telescopic sliding component (12) slides in the second straight groove (1403) and the first arc groove (1404), the first mesh plate (13041) and the second mesh plate (13042) cooperate with each other to form an inverted V-shaped structure.

2. A drainage system with a hydraulic rotary weir gate according to claim 1, characterized in that: The fixed mesh plate (1301) is fixedly connected to one end close to the conveyor mesh belt (11) with a rotating shaft (16); a sleeve (15) movably sleeved on the rotating shaft (16) is fixedly connected to the conveyor mesh belt (11); a torsion spring (17) located in the sleeve (15) is sleeved on the rotating shaft (16); one torsion arm of the torsion spring (17) is connected to the rotating shaft (16); and the other torsion arm of the torsion spring (17) is connected to the sleeve (15), so as to make the fixed mesh plate (1301) perpendicular to the conveying surface of the conveyor mesh belt (11); A positioning column (20) is fixedly connected to the rotating shaft (16), and an arc-shaped positioning groove (21) adapted to the positioning column (20) is provided on the inner wall of the sleeve (15), wherein the arc-shaped positioning groove (21) is in the shape of an arc of a quarter of a circle.

3. A drainage system with a hydraulic rotary weir gate according to claim 2, characterized in that: The two ends of the rotating shaft (16) are detachably connected with shifting blocks (18) located outside the casing (15); blocks (19) corresponding to the shifting blocks (18) and located on the return section of the conveying mesh belt (11) are detachably connected on both the front and rear sides of the inner wall of the sewage interception tank (9); the top ends of the blocks (19) pass through the sewage inlet (10) and extend into the well body (1); When the stopper (19) contacts the shifting block (18), the rotating shaft (16) is driven to rotate 90° clockwise, so that the fixed mesh plate (1301) is parallel to the conveying surface of the conveying mesh belt (11).

4. The drainage control method of the drainage system with a hydraulic rotary weir gate according to any one of claims 1 to 3, characterized in that: The steps include: Step 1: upstream water enters the well body (1) from the water inlet pipe (6), the water level in the well body (1) is monitored in real time by an ultrasonic level meter (5), and the water level information is transmitted to the control unit (4); Step 2: When the water level is lower than the warning value, the hydraulic upward opening gate (3) is in an open state, the hydraulic rotating weir gate (8) is in a closed state, and the water flows to the sewage treatment plant through the sewage interception pipe (2); Step 3: When the water level is higher than the warning value, the hydraulic upward opening gate (3) and the hydraulic rotary weir gate (8) are both in the open state, and part of the water flows to the sewage treatment plant through the sewage interception pipe (2), and the other part flows to the natural water body through the drainage pipe (7); Step 4: In step 2 and step 3, the conveyor belt (11) is always in operation; The filtering and collecting mechanisms (13) on the conveying section of the conveying mesh belt (11) cooperate with each other to form a horizontal mountain-shaped structure, which is used to collect debris in the water body between the conveying mesh belt (11) and the water inlet pipe (6) into the sewage interception tank (9); Each filter collecting mechanism (13) on the return section of the conveyor mesh belt (11) first turns clockwise to be parallel to the conveying surface of the conveyor mesh belt (11), and then turns back to be perpendicular to the conveying surface of the conveyor mesh belt (11) after passing through the sewage inlet (10), so as to reduce the size of the gap between the return section of the conveyor mesh belt (11) and the sewage inlet (10), so that the debris in the sewage interception tank (9) is not easy to enter the water body between the conveyor mesh belt (11) and the drainage pipe (7) through the gap between the return section of the conveyor mesh belt (11) and the sewage inlet (10); Step 5: The debris entering the interception tank (9) flows to the sewage treatment plant through the interception pipe (2) for centralized treatment to prevent the debris from flowing into natural water bodies.

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